Introduce the base class for WordPress xProfile fields.
BP_XProfile_Field_Type_WordPress
uses [12868] improvements to specify the features & visibility the wp-biography
and wp-textbox
fields support. It hooks to bp_xprofile_set_field_data_pre_save
introduced in [12869] to handle field values persistency. It also handles fetching field values during a profile loop and caching these field values for a latter use.
Props DJPaul, Offereins, needle, netweb, vapvarun
See #7162